This blog is by Ismo Matilainen from the Nokia Siemens Networks VoLTE team.
LTE and Voice are working more closely together than ever. The availability of new VoLTE-enabled smartphones and innovative solutions like Single Radio Voice Call Continuity (SRVCC) makes it possible to launch VoLTE services even before operators have deployed full LTE coverage. SRVCC makes it possible to continue VoLTE calls on 2G or 3G networks in areas where it is not profitable to implement LTE or where the LTE rollout has not been completed.
As the world’s first operator to demonstrate multivendor SRVCC, Telefónica Germany has taken an important step in this direction. In a recent demonstration in lab conditions, it achieved this breakthrough with the world’s first multivendor transfer of a mobile call from LTE to UMTS. It successfully completed a smooth handover from one technology to the other under conditions similar to those in a live multivendor mobile network. A voice call that began as VoLTE continued as a conventional mobile call without any perceptible change in quality.
Nokia Siemens Networks is helping operators with SRVCC ensure the quality, reliability and continuity of voice calls, while generating a major source of operator revenue at the same time. Maintaining the same mobile subscriber database across the whole network is crucial to ensure and simplify subscriber data management.
We look forward to your thoughts about Voice Over LTE services. Stay tuned for more news about VoLTE developments and further achievements with SRVCC.
Please find more information about VoLTE and
Read the news about Telefónica Germany’s achievement with SRVCC.